Our brake buddy has worked perfectly..
Ez to connect, one button to push to calibrate it, and GO !
one time I had it sitting in the passenger seat for some reason and had to slam on the brakes in the jeep...
I was STUNNED when the brake arm SHOT out ! thank goodness it was pointed forward or it would have come flying across the console
I read up on it later and learned it has an inertia sensor as well as a trigger sensor from the coach ! I like our lil red teapot !